<button (click)="currentPageNumber = currentPageNumber - 1" [disabled]="currentPageNumber === 1">Previous</button>
<input type="number" [(ngModel)]="currentPageNumber" min="1" [max]="maxPageNumber" />
<span> / {{ maxPageNumber }}</span>
<button (click)="currentPageNumber = currentPageNumber + 1"
    [disabled]="currentPageNumber === maxPageNumber">Next</button>
<select [(ngModel)]="currentPageSizeOptionsIndex" (ngModelChange)="onPageSizeOptionChange($event)">
    @for(size of pageSizeOptions();track $index){
    <option [value]="$index">{{size}}个/页</option>
    }
</select>